this bit of hope comes as secretary of state john kerry arrives in ukraine's capital today. u.s. officials are saying the the pentagon put on hold all of its military exercises with russia, as well as any bilateral meet lgz, port visits and planning kompbs. >>> at the white house there is growing pressure on president obama to find a solution to the crisis. there are reports the administration is getting ready to impose sanctions against russia. for more on all this, abc's jonathan karl. >> reporter: white house officials say what concerns them is when it comes to exactly what is going on on the ground in ukraine, putin seems to be operating from his own set of facts. in conversations with president obama and with german chancellor angela merkel, putin talked about russians in ukraine being under attack, having their churches burned down, homes raided. they say there is no evidence that is happening. as one official told me, he has his facts, we have ours. with that, u.s. officials are drafting what could be comprehensive sanctions on russia. these would be the first sanctions on